Analysis
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max time kernel
168s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2022, 20:16
Static task
static1
Behavioral task
behavioral1
Sample
8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe
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Size
224KB
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MD5
9078fe55b22bbc389d175597f1e75d90
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SHA1
4b93f52b6026ca8fe488e4f106d0b4ee9be4eb26
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SHA256
8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef
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SHA512
c80f4d9be395d8b58865b6ccdcab9a478c0413e4656d1cd9dcdd9254a18a1e3eadee6e9f1d3daad028b2c0e1c610e32969e0c179f466d3794822a4bf73fce9cc
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SSDEEP
3072:tt505l9thYLcAVvvxPhS7i1iCwTr3xeT8eqtrz3Af+BOYgsX:o9t6gAVnNhqi1iCWrheYe8
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gueopo.exe -
Executes dropped EXE 1 IoCs
pid Process 4788 gueopo.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /v" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /w" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /g" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /d" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /h" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /e" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /a" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /s" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /m" gueopo.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /n" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /r" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /q" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /p" gueopo.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /x" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /c" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /f" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /z" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /o" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /y" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /l" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /j" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /t" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /i" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /b" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /n" 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /u" gueopo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueopo = "C:\\Users\\Admin\\gueopo.exe /k" gueopo.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum gueopo.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 gueopo.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe 4788 gueopo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 4788 gueopo.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3448 wrote to memory of 4788 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 81 PID 3448 wrote to memory of 4788 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 81 PID 3448 wrote to memory of 4788 3448 8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe"C:\Users\Admin\AppData\Local\Temp\8b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3448 -
C:\Users\Admin\gueopo.exe"C:\Users\Admin\gueopo.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4788
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1800
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD59078fe55b22bbc389d175597f1e75d90
SHA14b93f52b6026ca8fe488e4f106d0b4ee9be4eb26
SHA2568b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef
SHA512c80f4d9be395d8b58865b6ccdcab9a478c0413e4656d1cd9dcdd9254a18a1e3eadee6e9f1d3daad028b2c0e1c610e32969e0c179f466d3794822a4bf73fce9cc
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Filesize
224KB
MD59078fe55b22bbc389d175597f1e75d90
SHA14b93f52b6026ca8fe488e4f106d0b4ee9be4eb26
SHA2568b8c58299844acda97aaca4796f08cea241b3ef31f347bdefcdfaaf768daedef
SHA512c80f4d9be395d8b58865b6ccdcab9a478c0413e4656d1cd9dcdd9254a18a1e3eadee6e9f1d3daad028b2c0e1c610e32969e0c179f466d3794822a4bf73fce9cc